This is the Triptych of Saint Ivo (also known as the Saint Ivo Triptych),
a painting by the Southern Netherlandish painter Josse van der Baren
around 1570. It depicts the life of Saint Ivo of Kermartin,
the patron saint of jurists and lawyers.
The work is an oil on panel. The central scene depicts Saint Ivo
pleading for the poor, while the side panels depict scenes from his life.